求解因式分解x(2x-1)(2x-5)(x-2)-3

日期:2012-11-03 12:12:45 人气:1

求解因式分解x(2x-1)(2x-5)(x-2)-3

原式 =[(x-1)+1][(x-1)-1][(2x-3)+2][(2x-3)-2]-3 =[(x-1)^2-1][(2x-3)^2-4]-3 =(x-1)^2[(2x-3)^2-4]-[(2x-3)^2-4]-3 =(x-1)^2[(4x^2-12x+9)-4]-[(2x-3)^2-1] =(x-1)^2(4x^2-12x+5)-[(2x-3)-1][(2x-3)+1] =(x-1)^2(4x^2-12x+5)-4(x-2)(x-1) =(x-1)[(x-1)(4x^2-12x+5)-4(
    A+
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